In unison with Chevy's MyLink infotainment system, owners with compatible iPhones running iOS 6 or later can question the talking database in its "eyes free" mode, which uses Bluetooth capabilities of MyLink.

Eyes free mode allows users make voice-activated, hands-free calls; play music from their iTunes library, listen to and compose text messages; and access appointments saved to your calender.

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"It says a lot about our commitment to small-car customers that Chevrolet has announced Siri eyes free capability will be available in the Spark and Sonic well before the luxury brands," said Cristi Landy, Chevrolet marketing director for small cars, via press release.

GM says Siri will not be able to answer complex questions requiring display of a web page while in eyes free mode.

Spark and Sonic also have six months of free OnStar service included with purchase, GM said, which can also be used to remotely control a car's functions with the use of smartphone app.